The kryptonite new york noose chain lock is one of the most secure locks available this sturdy chain lock is crafted from boron manganese steel a material known for its durability and bolt cutter defying strength the kryptonite chain lock is easy to transport and its protective covering ensures your bike stays free from damaging abrasions the bike lock chainrsquos unique sliding dust cover adds to the locks cylinder longevity preventing wear and tear the kryptonite new york noose chain l